Counting led blinks..

[mackrackit]

This:

DATA @0,"12345"
DATA @6,"54321"

produces this when the EEPROM is read back

31

32

33

34

35

00

35

34

33

32

31

00

FF

FF

Is that what you want?

Did you find out what went bad with the SD card module? You can always use the SD card socket without all the other stuff on the module, it is easy if the MCU is running ~3 volts.

[tacbanon]

DATA @0,"12345"
DATA @6,"54321"

Sorry If I was not being clear... how can I rewrite them and read back as in the format of "56988" or "65431".
Before overwriting DATA @6,"54321" I can read back as "54321". But after updating it gives me like Hex numbers.

I don't know exactly what happened to sdcard it just dont work as before. But I will try to test it again later.

thanks,
tacbanon

[tacbanon]

Hi mackrackit, sorry if was not making clear. I want to read back from eeprom in the format of example "12345" or "65432" and I can do this uisng the following code.

if Key = "A" then
READ 0,x
serout2 PortD.5,84,[$D,Dec x," "]
pause 1000
for address=0 to x
    READ address,asciichar
    serout2 PortD.5,84,[$D,asciichar]
next address
pause 1000
cnt = 0
endif

And I noticed that if I rewrite the value of DATA @6,5,"54321" by entering "19325" and read it back I get "QZu" not "19325"..how do I resolve this?
I will try to test the sdcard tonight, hope something comes up....

thanks,
tacbanon

[tacbanon]

Hi I finally got my eeporm problem solved..I figured that it needs 2 location space in between.

DATA @0,5,"12345"
DATA @7,5,"54321"
DATA @14,5,"14332"
DATA @21,5,"24432"
DATA @28,5,"85921"

works great...
BTW just want to ask if there is a possible to press a key that consist of several characters, for example if I pressed key 1 in successive I can get a character 'a','b','c'. similar to a cellphone keypad.

regards,
tacbanon

[tacbanon]

I found one link http://www.picbasic.co.uk/forum/showthread.php?t=11209 but not sure how to to do it...but I will try..

regards,
tacbanon

[mackrackit]

Melanie's example is good, but the methods talked about at the start of this thread might be better.
Timer/Counter from TIMER0.
It should work well with all of the other stuff going on.

[tacbanon]

Hi, I'm sorry about that(I'm misleading the thread), anyway I borrowed an sdcard from a friend...but he never tested it yet and doesn't have datasheet..hopefully I don't blow it up
Here are the List I done & planning to do on my project in this thread.
1. Use Timer/Counter from TIMER0 for multi coin-acceptor(pic16F877 and 18F4550) -Done
2. Test RTC and Sdcard separate program- Done
3. Incorporating Multi coin acceptor-RTC and Keypad on 4550 - Done (I need the keypad for access and view settings.)
4. Incorporate SDcard for saving RTC data and number of coins dropped - not yet
5. Use USB CDC to dump data(rtc and number of coins) from SDcard to terminal communicator - not yet


I appreciated the help and the knowledge I got on this forum...not easy task(for me) but you encourage me to try it out...


thanks again,
tacbanon

[tacbanon]

Hi, I have only one 4550 and I want to try it to another chip, I only have pic18f2550..I followed some instructions to comment the default config fuse in PBP INC files. I tried to compile this part of the code..

    '<FL_PIC18F2550>'    '<FL_PBPL>'
    DEFINE OSC 48
    @ __CONFIG   _CONFIG1L, _PLLDIV_1_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
    @ __CONFIG   _CONFIG1H, _FOSC_HSPLL_HS_1H
    @ __CONFIG   _CONFIG2H, _WDT_OFF_2H & _WDTPS_512_2H
    @ __CONFIG   _CONFIG2L, _PWRT_ON_2L & _VREGEN_ON_2L
    @ __CONFIG   _CONFIG3H, _PBADEN_OFF_3H & _MCLRE_OFF_3H
    @ __CONFIG   _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L
    Include "modedefs.bas"
        ' Alias PIC pins and registers for SD/MMC card
    SD_WE        VAR    PORTA.4    ' SD card write protect
    SD_WE_TRIS   VAR    TRISA.4    ' SD card write protect direction
    SDI          VAR    PORTA.5    ' SPI data in SD #7
    SDI_TRIS     VAR    TRISA.5    ' SPI data in direction
    SCL          VAR    PORTA.3    ' SPI clock  SD #5
    SCL_TRIS     VAR    TRISA.3    ' SPI clock direction
    SD_CS        VAR    PORTC.2    ' SD card chip select SD #1
    SD_CS_TRIS   VAR    TRISC.2    ' SD card chip select direction
    SD_CD        VAR    PORTC.0    ' SD card detect
    SD_CD_TRIS   VAR    TRISC.0    ' SD card detect direction
    SDO          VAR    PORTC.1    ' SPI data out   SD #2
    SDO_TRIS     VAR    TRISC.1    ' SPI data out direction

But gives me the following compilation error...


regards,
tacbanon